aid: fiddlerai
name: fiddler.ai
description: >-
  Fiddler AI is an enterprise AI Observability and Security platform — an "AI Control
  Plane" for AI agents, LLM applications, and traditional ML models. It delivers unified
  monitoring, real-time guardrails (safety, hallucination/faithfulness, and PII/sensitive-data
  detection), evaluation and experiments, drift and performance tracking, LLM-as-a-Judge
  custom evaluators, alerting, and governance/compliance across the AI lifecycle. Fiddler
  exposes a REST API (v3), an official Python client (fiddler-client), OpenTelemetry-native
  ingestion, and a remote MCP server for agent-native access to observability data.
url: https://raw.githubusercontent.com/api-evangelist/fiddlerai/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- insight-partners
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
image: https://www.fiddler.ai/favicon.ico
tags:
- Company
- AI Observability
- Machine Learning
- LLM
- Model Monitoring
- Guardrails
- MLOps
- AI Governance
- Explainability
- Agent Observability
- AI Security
apis:
- name: Fiddler REST API
  description: >-
    REST API (v3) for the Fiddler AI Observability platform — projects, models,
    applications, events, traces/sessions/spans, evaluators, alert rules, guardrails,
    custom metrics, and jobs. Resource-oriented URLs, JSON envelopes, Bearer auth.
  humanURL: https://docs.fiddler.ai/api/rest-api/rest-api
  baseURL: https://demo.fiddler.ai/v3
  tags:
  - AI Observability
  - Guardrails
  - Monitoring
  properties:
  - type: Documentation
    url: https://docs.fiddler.ai/api
  - type: APIReference
    url: https://docs.fiddler.ai/api/rest-api/rest-api
  - type: Authentication
    url: authentication/fiddlerai-authentication.yml
  - type: Conventions
    url: conventions/fiddlerai-conventions.yml
  - type: ErrorCatalog
    url: errors/fiddlerai-problem-types.yml
  - type: DataModel
    url: data-model/fiddlerai-data-model.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/fiddlerai-domain-security.yml
- type: Website
  url: https://www.fiddler.ai/
- type: DeveloperPortal
  url: https://docs.fiddler.ai/developers
- type: Documentation
  url: https://docs.fiddler.ai
- type: APIReference
  url: https://docs.fiddler.ai/api/rest-api/rest-api
- type: GettingStarted
  url: https://docs.fiddler.ai/product-guide/getting-started
- type: Support
  url: https://www.fiddler.ai/contact-sales
- type: Blog
  url: https://www.fiddler.ai/blog
- type: GitHubOrganization
  url: https://github.com/fiddler-labs
- type: Pricing
  url: https://www.fiddler.ai/pricing
- type: TermsOfService
  url: https://www.fiddler.ai/terms-of-use
- type: PrivacyPolicy
  url: https://www.fiddler.ai/privacy-policy
- type: ChangeLog
  url: https://docs.fiddler.ai/changelog/
- type: MCPServer
  url: mcp/fiddlerai-mcp.yml
- type: Packages
  url: packages/fiddlerai-packages.yml
- type: SDKs
  url: packages/fiddlerai-packages.yml
- type: Authentication
  url: authentication/fiddlerai-authentication.yml
- type: Conventions
  url: conventions/fiddlerai-conventions.yml
- type: ErrorCatalog
  url: errors/fiddlerai-problem-types.yml
- type: Lifecycle
  url: lifecycle/fiddlerai-lifecycle.yml
- type: Deprecation
  url: https://docs.fiddler.ai/changelog/python-sdk
- type: Conformance
  url: conformance/fiddlerai-conformance.yml
- type: Compliance
  url: https://www.fiddler.ai/security
- type: TrustCenter
  url: https://trust-center.fiddler.ai
- type: Webhooks
  url: asyncapi/fiddlerai-alerts-webhooks.yml
- type: DataModel
  url: data-model/fiddlerai-data-model.yml
- type: LLMsTxt
  url: llms/fiddlerai-llms.txt
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence